Bess (Calgary, Alberta, Canada) on 05/02/2011:

Both retinoic acid (a natural, acid form of vitamin A) and azaleic acid (a natural component of human skin) can lessen the abnormally heavy pigmentation of melasma, but in 2002 Chinese investigators reported another simple but effective remedy.

The researchers investigated the effects of pycnogenol (a standardized antioxidant rich extract of the bark of the French pine tree Pinus pinaster) against melasma in thirty women with the condition.

After standardized measurements of area and degree of melasma pigmentation, each woman took 25 milligrams of pycnogenol three times daily for 30 days. Both the area covered by melasma and the intensity of the pigment were significantly reduced. The "general effective rate" was 80 percent and no side effects were reported. Other symptoms also decreased during the 30 days, including fatigue, constipation, pains in the body, and anxiety.

The researchers wrote: "To conclude, pycnogenol was shown to be therapeutically effective and safe in patients suffering from melasma."

I hope this helps!